Metz MECABLITZ 36 AF-4 Canon Owner's manual

MECABLITZ 36 AF-3 C/M/N

MECABLITZ 36 AF-4 C

Bedienungsanleitung

Mode d’emploi

Handleiding

Operating Instructions

Norme per l’uso

Instrucciones del manejo

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Foreword

Welcome to the large family of Metz customers! We con-

gratulate you on purchasing this flash unit and thank you

for your confidence in our products.

It is only natural that you should want to use your flash unit

straight away. However, we recommend that you study the-

se Operating Instructions beforehand to be able to fully

exploit and utilize all the capabilities offered.

This flash unit is only suitable for the following camera brands:

• mecablitz 36 AF-3 C only for Canon EOS cameras

• mecablitz 36 AF-4 C only for Canon EOS/Power shot

cameras

• mecablitz 36 AF-3 M only for Minolta Dynax or. Minolta

Maxxum cameras

• mecablitz 36 AF-3 N only for Nikon cameras.

Contents

1. Safety instructions . . . . . . . . . . . . . . . . . . . . . . 70

2. Supported dedicated functions . . . . . . . . . . . . . 71

2.1 mecablitz 36 AF-3 C . . . . . . . . . . . . . . . . . . . . 71

2.2 mecablitz 36 AF-4 C . . . . . . . . . . . . . . . . . . . . 72

2.3 mecablitz 36 AF-3 M . . . . . . . . . . . . . . . . . . . . 72

2.4 mecablitz 36 AF-3 N . . . . . . . . . . . . . . . . . . . . 73

3. Mounting the mecablitz . . . . . . . . . . . . . . . . . . 73

3.1 Mounting the mecablitz on the camera. . . . . . . . 73

3.2 Removing the mecablitz from the camera . . . . . . 74

4. Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . 74

4.1 Suitable batteries . . . . . . . . . . . . . . . . . . . . . . . 74

4.2 Replacing batteries . . . . . . . . . . . . . . . . . . . . . . 75

4.3 Switching the flash unit on and off . . . . . . . . . . . 75

5. Dedicated functions and flash mode . . . . . . . . . 76

5.1 Flash readiness indication . . . . . . . . . . . . . . . . . 76

5.2 Automatic flash sync speed control. . . . . . . . . . . 76

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5.3 Correct exposure indication. . . . . . . . . . . . . . . . 77

5.4 Displays in the camera viewfinder . . . . . . . . . . . 77

5.4.1 mecablitz 36 AF-3 C . . . . . . . . . . . . . . . . . . . . 78

5.4.2 mecablitz 36 AF-3 M . . . . . . . . . . . . . . . . . . . . 78

5.4.3 mecablitz 36 AF-3 N . . . . . . . . . . . . . . . . . . . . 78

5.5 Zoom reflector . . . . . . . . . . . . . . . . . . . . . . . . . 79

5.6 AF measuring beam . . . . . . . . . . . . . . . . . . . . . 79

5.7 TTL flash mode . . . . . . . . . . . . . . . . . . . . . . . . . 80

5.7.1 Automatic TTL fill-in flash in daylight . . . . . . . . . 81

5.7.2 Canon E-TTL flash mode . . . . . . . . . . . . . . . . . . 81

5.7.3 Matrix-controlled fill-in flash (Nikon) . . . . . . . . . 82

5.7.4 Manual TTL flash exposure correction. . . . . . . . . 83

5.8 Establishing the maximum flash range with

the aperture calculator . . . . . . . . . . . . . . . . . . . 83

6. Programmed Auto Flash Mode . . . . . . . . . . . . . 84

7. Flash techniques . . . . . . . . . . . . . . . . . . . . . . . 85

7.1 Bounce flash. . . . . . . . . . . . . . . . . . . . . . . . . . . 85

7.2 Flash synchronisation . . . . . . . . . . . . . . . . . . . . 86

7.2.1 Normal synchronisation . . . . . . . . . . . . . . . . . . 86

7.2.2 REAR - Second-curtain synchronisation . . . . . . . 86

7.2.3 Slow synchronisation / SLOW. . . . . . . . . . . . . . 86

8. Maintenance and care . . . . . . . . . . . . . . . . . . . 87

9. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . 88

9.1 Guide number table for full light output,

metric system . . . . . . . . . . . . . . . . . . . . . . . . . 136

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1. Safety instructions

•

The flash unit is exclusively intended and approved for

photographic use!

•

Never fire a flash in the vicinity of flammable gases or

liquids (petrol, solvents, etc.)! DANGER OF EXPLOSION!

•

Never take flash shots of car, bus or train drivers, or of

motorcycle and bicycle riders, whilst they are travelling.

They could be blinded by the light and cause an accident!

•

Never fire a flash in the immediate vicinity of the eyes!

Flash fired directly in front of the eyes of a person or ani-

mal can damage the retina and lead to severe visual

disorders - even blindness!

•

Only use the approved power sources listed in the

Operating Instructions!

•

Do not expose batteries to excessive heat, sunshine, fire

and the like!

•

Never throw exhausted batteries on to a fire!

•

Exhausted batteries should be immediately removed from

the flash unit. Lye leaking out of spent batteries will dam-

age the unit.

•

Never recharge dry-cell batteries!

•

Do not expose the flash unit or battery charger to drip-

ping or splashing water (such as rain)!

•

Protect the flash unit from excessive heat and humidity!

Do not store the flash unit in the glove compartment of a

car!

•

Never place material that is impervious to light in front of,

or directly on, the reflector screen. The reflector screen

must be perfectly clean when a flash is fired. The high

energy of the flash light will burn the material or damage

the reflector screen if this is not observed.

•

Do not touch the reflector screen after a series of flash

shots. Danger of burns!

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•

Never disassemble the flashgun! DANGER: HIGH VOLT-

AGE! There are no components inside the flashgun that

can be repaired by a layman.

•

When taking a series of flash shots at full light output and

fast recycling times as provided by NiCad battery opera-

tion, make sure to observe an interval of at least 10 mi-

nutes after 15 flashes, otherwise the flash unit will be

overloaded.

•

The mecablitz may only be used in combination with a

camera-integrated flash unit if the latter can completely

be folded out!

•

Quick changes in temperature may cause condensation.

Therefore give the flashgun time to acclimatize!

2. Supported dedicated functions

2.1 mecablitz 36 AF-3 C

• Flash ready indication in camera viewfinder

• Automatic flash sync speed

• TTL flash control

∆ Manual TTL-flash exposure correction

x AF measuring beam control

• Programmed auto flash mode

∆ = Dedicated function is performed by the camera or must be

set on the camera.

x = Some cameras only support the AF illuminator integrated

in the camera.

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2.2 mecablitz 36 AF-4 C

• Flash ready indication in camera viewfinder

• Automatic flash sync speed

• TTL flash control

• E-TTL flash control

∆ Manual TTL-flash exposure correction

∆ Flash exposure storage FE

x AF measuring beam control

• Programmed auto flash mode

∆ = Dedicated function is performed by the camera or must be

set on the camera.

x = Some cameras only support the AF illuminator integrated

in the camera.

2.3 mecablitz 36 AF-3 M

• Flash ready indication in camera viewfinder

> Automatic flash sync speed

• TTL flash control

• Automatic TTL flash exposure correction

∆ Manual TTL-flash exposure correction

• AF measuring beam control

• Programmed auto flash mode

∆ 1st or 2nd curtain synchronisation

∆ = Dedicated function is performed by the camera or must be

set on the camera.

x = Some cameras only support the AF illuminator integrated

in the camera.

> =

Only in the camera modes A, S and M

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2.4 mecablitz 36 AF-3 N

• Flash ready indication in camera viewfinder

• Automatic flash sync speed

• TTL flash control

• Automatic TTL flash exposure correction

∆ Manual TTL-flash exposure correction

∆ Matrix controlled TTL fill-in flash mode

• AF measuring beam control

• Programmed auto flash mode

∆ 1st or 2nd curtain synchronisation

∆ = Dedicated function is performed by the camera or must be

set on the camera.

x = Some cameras only support the AF illuminator integrated

in the camera.

3. Mounting the mecablitz

3.1 Mounting the mecablitz on the camera

Turn off the camera and the mecablitz by their main

switch.

mecablitz 36 AF-3 C/4 C and 36 AF-3 N

•

Turn the knurled nut against the mecablitz housing until

the stop point is reached.

•

Slide the mecablitz foot completely into the camera’s

accessory shoe.

•

Turn the knurled nut against the camera body as far as

possible, thereby clamping the mecablitz.

mecablitz 36 AF-3 M

•

Slide the mecablitz foot completely into the camera’s

accessory shoe.

•

Lightly press the unlatching button “PUSH” upward to

clamp the mecablitz in the camera’s accessory shoe.

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3.2 Removing the mecablitz from the camera

Turn off the camera and the mecablitz by their main

switch.

mecablitz 36 AF-3 C/4 C and 36 AF-3 N

•

Turn the knurled nut against the mecablitz housing until

the stop point is reached.

•

Withdraw the mecablitz from the camera’s accessory

shoe.

mecablitz 36 AF-3 M

•

Press the unlatching button “PUSH” towards the flash unit

and at the same time hold it lightly down until the “PUSH”

button locks in place.

•

Withdraw the mecablitz from the camera’s accessory

shoe.

4. Power supply

4.1 Suitable batteries

The mecablitz can be operated with any of the following

batteries:

• 4 NiCad batteries, type IEC KR 15/51. They permit very

fast recycling and are economical in use because they are

rechargeable.

• 4 nickel metal hydride batteries. They have a significantly

higher capacity than NiCad batteries and are less harm-

ful to the environment (no cadmium).

• 4 alkaline manganese dry-cell batteries, type IEC LR6.

Maintenance-free power source for moderate power re-

quirements.

Do not use lithium batteries! Their higher cell voltage

may damage the electronic system of the flash unit.

Remove the batteries from the mecablitz if the flash unit is

not going to be used for an extended period of time.

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4.2 Replacing batteries

The batteries are exhausted if the recycling time (elapsing

from the triggering of a full-power flash to the moment the

flash ready indicator lights up again) exceeds 60 seconds.

• Turn off the mecablitz by its main switch.

• Slide the battery compartment cover in the direction of the

arrow and fold open.

• Insert the batteries lengthwise in conformity with the indi-

cated battery symbols and close the battery compartment

cover.

When loading batteries ensure correct polarity, as

indicated by the symbols in the battery compartment.

Mixed up battery poles may destroy the flash unit!

Replace all batteries at a time and make sure that the

batteries are of the same brand and type and have

the same capacity!

Exhausted batteries must not be thrown in the dustbin!

Help protect the environment and dispose of run-down

batteries at the appropriate collecting points.

4.3 Switching the flash unit on and off

The flash unit is switched on by its main switch. In the right

“ON” position, the mecablitz is on. To turn off the flash unit

reset the main switch to its “OFF” position.

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5. Dedicated functions and flash mode

5.1 Flash readiness indication

The flash readiness symbol lights up on the mecablitz

when the flash capacitor is charged, thereby indicating that

flashes can be fired for the next shot. Flash readiness is

transmitted to the camera and displayed in the viewfinder

(see camera manual).

If a picture is shot before flash readiness is signalled in the

camera’s viewfinder, then the flash unit will not be triggered

so that the exposure may be incorrect.

If flash readiness is established, a full-power test flash

can be triggered with the manual firing button on the

mecablitz.

5.2 Automatic flash sync speed control

Depending on the camera model and the selected mode,

the camera’s shutter speed automatically changes to flash

sync speed when flash readiness is reached (see operating

instructions for the given camera).

Shutter speeds faster than the flash sync speed cannot be

set or will automatically be changed to flash sync speed.

Various cameras feature a sync speed range, e.g. 1/30th

sec. to 1/125th sec. (see the camera’s operating instruc-

tions). The actual sync speed used by the camera depends

on the camera mode, the prevailing ambient light and the

focal length of the lens.

Shutter speeds that are slower than the flash sync speed can

be used, depending on the operating mode selected on the

camera.

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Only mecablitz 36 AF-3 M:

When the flash unit is switched on with bright ambient light,

ensure that in the Program P and Programmed Image

Control Modes the shutter speed is not faster than the flash

sync speed. In the event that the camera selects a faster

speed, this can be limited to the flash sync speed by pres-

sing the key for exposure control on the camera. An alter-

native way to overcome the problem is to set the “A”, “S” or

“M” mode on the camera.

5.3 Correct exposure indication

The “o.k.” correct exposure confirmation briefly lights up on

the mecablitz when the shot was correctly exposed in TTL

flash mode.

If “o.k.” is not indicated after an exposure, then this means

that the shot was underexposed. The shot will then have to

be repeated with the next smaller f-number (e.g. f/8 instead

of f/11) or the distance to the subject or the reflecting sur-

face (e.g. when bouncing the flash) must be shortened.

Please refer to the maximum flash range indicated on the

aperture calculator of the mecablitz 36AF-3C/M/N.

Only mecablitz 36 AF-3 M:

Following correct exposure the mecablitz transmits a signal

to the camera with the result that correct exposure is addi-

tionally indicated in the viewfinder of some cameras (see

operating instructions for the given camera).

5.4 Displays in the camera viewfinder

The actual display in the camera viewfinder can devia-

te from the subsequent description or some symbols

are only possible with certain camera models (see

operating instructions for the given camera).

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5.4.1 mecablitz 36 AF-3 C/4 C

• Flash symbol flashes:

User is requested to use or switch on the flash unit.

• Flash symbol lights up: mecablitz is ready for operation.

Some cameras have a warning function in the viewfinder to

indicate incorrect exposure. For instance, if the f-number or

shutter speed or both of them flash in the viewfinder, then

this will indicate either under- or overexposure.

Basic infor

mation concerning incorrect exposure:

• In the event of overexposure: Do not use the flash!

• In the event of underexposure: Switch on the flash unit or

mount the camera on a tripod and set a slower shutter

speed.

The reasons for incorrect exposure can vary in the different

exposure and automatic programmes.

5.4.2 mecablitz 36 AF-3 M

• Flash symbol lights up (Flash readiness indication):

Display is permanently illuminated or flashes slowly to

indicate that the mecablitz is ready for firing. A flash will

be fired when the camera’s shutter is released.

• Flash symbol flashes (Correct exposure indication):

Display flashes rapidly after shooting to confirm correct

exposure.

• Display flashes:

Flash is required for the existing exposure situation.

5.4.3 mecablitz 36 AF-3 N

• Green flash symbol illuminated:

User is requested to use or switch on the flash unit.

• Red flash symbol illuminated:

Flash unit is ready for firing.

• Red flash symbol remains illuminated after shooting or

is briefly switched off:

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The shot was correctly exposed.

5.5 Zoom reflector

The zoom reflector of the mecablitz has four zoom positions

for optimal light coverage and adaptation of the guide

number to the focal length of the lens.

28 mm Wide-angle illumination for focal lengths

as of 28 mm

35 mm Wide-angle illumination for focal lengths

as of 35 mm

50 mm Normal illumination for focal lengths as of 50 mm

85 mm Telelens illumination for focal lengths as of 85 mm

The zoom reflector can be swivelled upwards into four lock-

ing positions (e.g. for bounce flashes):

30°, 45°, 60° and 90°.

For normal flash operation the reflector is in the horizontal

position: 0°.

5.6 AF measuring beam

The AF measuring beam is activated by the camera electro-

nics when the ambient lighting conditions are insufficient for

automatic focusing. The AF beam emitter then projects a

striped pattern on to the subject, and the camera uses this

pattern to focus automatically.

To enable activation of the AF measuring beam by

the camera, the camera lens must be set to AF. On

the camera, the AF mode “Single-AF” or “ONE-SHOT-

AF” must be selected. Low-speed zoom lenses may

significantly reduce the distance range of the AF mea-

suring beam.

The striped pattern of the AF measuring beam only supports

the camera’s central AF sensor. When using cameras with

several AF metering areas we therefore recommend to acti-

vate the camera’s central AF metering zone.

Some cameras may only activate the AF illuminator inte-

grated in the camera. In such an event, the AF measuring

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beam emitter of the mecablitz will not be activated.

Please refer to the corresponding information given in

operating instructions for the individual camera.

5.7 TTL flash mode

The mecablitz 36AF-3 is only suitable for the TTL flash

mode.

The TTL flash mode is a very simple way to achieve excellent

flash shots. In this mode exposure readings are taken by a

sensor built into the camera which measures the light reach-

ing the film through the camera lens (TTL). The electronic

control circuit within the camera transmits a stop signal to

the mecablitz as soon as the film has been exposed by the

correct amount of light, thereby instantly interrupting the

flash. The advantage of this flash mode is that all factors in-

fluencing correct exposure of the film (filters, change of

aperture and focal length with zoom lenses, extensions for

close-ups, etc.) are automatically taken into account. You

need not worry about setting the flash, the camera’s elec-

tronic system automatically determines the correct amount

of flash light required.

If flash exposure was correct, the “o.k.” exposure confirma-

tion lights up.

The TTL flash mode is supported by all camera modes (e.g.

Full Auto Mode, Program P, Aperture Priority Mode “Av” or

“A”, Shutter Priority Mode “Tv” or “S”, Programmed Image

Control Modes, Manual Mode “M”, etc.).

To test the TTL function a film must be loaded in the

camera. When selecting the film please check whet-

her limits regarding maximum film speed are appli-

cable to the given camera when in TTL mode (refer to

the camera’s operating instructions). The mecablitz

supports the TTL flash mode for film speeds from

ISO 25 to ISO 800.

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5.7.1 Automatic TTL fill-in flash in daylight

Most camera models automatically activate the fill-in flash

mode when in Full Auto Mode, Program P, and the

Programmed Image Control Modes in daylight (see the

camera’s operating instructions).

Fill-in flash overcomes troublesome dense shadows and

produces a more balanced exposure between subject and

background with contre-jour shots. The camera’s computer-

controlled metering system sets the most suitable combina-

tion of shutter speed, working aperture and flash output.

Ensure that the contre-jour light source does not shine

directly into the lens as this will mislead the camera’s

TTL metering system!

In this instance there is no setting or display on the meca-

blitz for automatic TTL fill-in flash.

5.7.2 Canon E-TTL flash mode

With mecablitz 34 AF-4 C only

The E-TTL flash mode is an advanced variant of the “normal”

TTL flash mode. Prior to shooting, the reflection of the subject

is measured by way of a preflash. The camera evaluates the

reflected preflash light so that the subsequent flash exposure is

optimally adapted to the prevailing photographic situation

(see operating instructions of your camera). The measuring

preflash does not contribute to the exposure.

Settings and displays

• Switch on the flash unit and the camera.

• Lightly touch the camera’s shutter release for data exchan-

ge between flash unit and camera.

•

The E-TTL flash mode is automatically activated when the camera

supports this mode. E-TTL then lights up on the flash unit.

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FE flash exposure storage

Some Canon cameras offer the possibility of FE flash expo-

sure storage. This is supported by the flash unit in the E-TTL

flash mode.

FE flash exposure storage in E-TTL mode permits the amount

of light required for the subsequent shot to be determined

and stored prior to exposure. This can be expedient when

flash exposure has to be adapted to specific details that

may not necessarily be identical with the main subject.

Focus the camera’s AF sensor metering area on the zone

whose flash exposure is to be predetermined. When the FE

button on the camera is actuated (the designation may vary

with individual camera models - see camera’s operating

instructions) the flash unit will fire an FE test flash. The elec-

tronic measuring circuit inside the camera assesses the

reflected light of the FE test flash to determine the light output

required for the subsequent exposure. The main subject can

thereafter be focused with the AF sensor metering area of

the camera. When the shutter release is pressed the picture

will be exposed with the previously determined light output.

Due to system-inherent reasons any changes in the light

situation after the FE test flash has been fired will not be

taken into account when the picture is shot.

Some cameras do not support FE flash exposure storage in

the “green” full auto mode or programmed image control

modes (see camera’s operating instructions).

5.7.3 Matrix-controlled fill-in flash (Nikon)

Only with mecablitz 36 AF-3 N

In this flash mode the subject and the background lighting

are automatically balanced without overexposing the sub-

ject. The camera establishes the exposure setting for the

ambient light by matrix metering.

This operating mode is either set on the camera or automa-

tically activated by the camera (see operating instructions

for the given camera).

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5.7.4 Manual TTL flash exposure correction

The TTL auto flash mode of most cameras is matched to a 25

% degree of light reflection by the subject (average amount of

light reflected by flash-shot subjects). Consequently, a dark

background that absorbs a great deal of light, or a bright

background that reflects a great deal of light, can result in

under- or overexposure, respectively.

To offset this effect a correction value can be set on some

cameras to manually match the TTL flash exposure to the

photographic situation. The actual extent of correction

depends on the contrast prevailing between subject and

background. The correction value is set on the camera.

Please refer to the camera’s operating instructions for details

concerning the settings.

A dark subject in front of a bright background:

Positive correction value (approx. 1 to 2 EV). Light

subject in front of a dark background: Negative cor-

rection value (approx. -1 to -2 EV).

Exposure correction by changing the lens diaphragm is not

possible because the camera’s automatic exposure system

will automatically regard the changed diaphragm as the

normal working aperture.

After the exposure do not forget to reset the TTL flash

exposure correction back to the normal value on the

camera!

5.8 Establishing the maximum flash range with the

aperture calculator

Only possible on flash units with aperture calculator.

The maximum flash range of the mecablitz can be estab-

lished by way of the aperture calculator in the control

panel.

• Set the “ISO” upper slide at the ISO speed of the film

loaded in the camera.

• Set the lower slide at the selected zoom position of the

reflector (28 mm, 35 mm, 50 mm or 85 mm).

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• Select in the “F” line of the aperture calculator the f-stop

set on the camera/lens.

• The maximum flash range of the mecablitz in meters (m)

and feet (ft) is indicated underneath the f-stop.

A minimum distance to the subject should be maintained to

avoid overexposure. The minimum distance is approximate-

ly 10 per cent of the maximum flash range.

Ideally, the subject should be located in the middle third of

the distance between minimum distance and maximum flash

range to give the electronic circuit sufficient leeway for light

control.

Example:

Settings: ISO 100, 50 mm, f/4

• The aperture calculator will indicate a maximum flash

range of approx. 7.3 m.

• The minimum distance to the subject is therefore approx.

0.7 m.

• Ideally, the subject should be at a distance of

between 2.9 m and 5.1 m.

6. Programmed Auto Flash Mode

In the programmed auto flash mode the camera automati-

cally controls the aperture, the shutter speed, and the meca-

blitz for optimal results in most photographic situations,

including fill-in flash.

Settings on the camera

Set your camera to Full Auto Mode, Program P or a

Programmed Image Control Mode (landscape, portraiture,

sport, etc.). Select the auto-focus mode on the camera.

Settings on the flash unit

Adjust the zoom position of the reflector to the focal length

of the lens or set the reflector straightaway to “28 mm”.

Having completed the above settings, you can commence

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flash photography as soon as the mecablitz indicates flash

readiness.

7. Flash techniques

7.1 Bounce flash

Photos shot with full frontal flash are easily recognized by

their harsh, dense shadows. This is often associated with a

sharp drop in light from the foreground to the background.

This phenomenon can be avoided with bounce flash becau-

se the diffused light will produce a soft and uniform rendi-

tion of both the subject and the background. For this situa-

tion the reflector is turned in such a manner that the flash is

bounced off a suitable reflective surface (e.g. ceiling or wall

of the room).

The reflector can be turned vertically up to 90°.

When turning the reflector vertically, it is essential to ensure

that it is moved by a sufficiently wide angle so that direct

light can no longer fall on the subject. Consequently, always

turn the reflector at least to the 60° lock-in position.

The light bounced off the reflecting surfaces produces a soft

and uniform illumination of the subject. The reflecting surfa-

ce must be white or have a neutral colour, and it must not

be structured, e.g. wooden beams in a ceiling as these

might cause shadows. For colour effects just select the

reflective surface in the desired colour.

Take into account that the maximum flash range is

considerably diminished when bouncing the flash.

The following rule of thumb will help you determine

the maximum flash range for a room of normal

height:

guide number

Maximum flash range = –––––––––––––––––––––––––

(flash-to-subject distance x 2)

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7.2 Flash synchronisation

7.2.1 Normal synchronisation

In normal synchronisation the mecablitz is triggered at the

beginning of the exposure time (1st curtain synchronisa-

tion). Normal synchronisation is the standard mode on all

cameras, and is suitable for most flash shots. Depending

upon the given mode, the camera is changed over to flash

sync speed, the customary one being between 1/30th sec.

and 1/125th sec. (see the camera’s operating instructions).

No settings have to be made on the mecablitz, nor is there

any display for this mode.

7.2.2 REAR - Second-curtain synchronisation

Some cameras offer the facility of second-curtain synchroni-

sation (REAR mode) triggering the mecablitz by the end of

the exposure time. Second-curtain synchronisation is parti-

cularly advantageous when using slow shutter speeds (slo-

wer than 1/30 sec.) or when shooting moving objects that

have their own source of light. Second-curtain synchronisa-

tion gives a more realistic impression of movement because

the light streaks behind the light source instead of building

up in front of it, as is the case when the flash is synchroni-

sed with the 1st shutter curtain! Depending on its operating

mode, the camera uses shutter speeds slower than its sync

speed.

The REAR function is only possible with cameras fea-

turing this facility. The corresponding setting is made

on the camera (see operating instructions of the given

camera).

7.2.3 Slow synchronisation / SLOW

In certain operating modes, some cameras permit slow flash

synchronisation (SLOW) which will provide added promi-

nence to the background at lower ambient light levels. This

is achieved by matching the shutter speed to the ambient

light. Accordingly, shutter speeds slower than the flash sync

speed are automatically adjusted by the camera. Some

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705 47 0076.A2 36 AF3-4 13.07.2006 15:10 Uhr Seite 86

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Metz MECABLITZ 36 AF-4 Canon Owner's manual

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